two component thermosetting polyurethane adhesive with high initial and final strength

摘要

A two-pack polyurethane adhesive for semi-structural and structural adhesive bonds which are applied in melt form and have a high handling strength wherein the two-pack polyurethane adhesive includes a first pack A containing at least one polyester A1 which is solid at room temperature and at least one polyol A2 having a hydroxyl group functionality greater than 2.0, and a second pack B containing polyurethane prepolymers having isocyanate groups.